SCHEDULE: NOV 10-16, 2012
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Host Load Prediction in a Google Compute Cloud with a Bayesian Model
SESSION: Cloud Computing
EVENT TYPE: Papers
TIME: 2:00PM - 2:30PM
SESSION CHAIR: Manish Parashar
AUTHOR(S):Sheng Di, Derrick Kondo, Walfredo Cirne
Prediction of host load in Cloud systems is critical for achieving service-level agreements. However, accurate prediction of host load in Clouds is extremely challenging because it fluctuates drastically at small timescales. We design a prediction method based on Bayes model to predict the mean load over a long-term time interval, as well as the mean load in consecutive future time intervals. We identify novel predictive features of host load that capture the expectation, predictability, trends and patterns of host load. We also determine the most effective combinations of these features for prediction. We evaluate our method using a detailed one-month trace of a Google data center with thousands of machines. Experiments show that the Bayes method achieves high accuracy with a mean squared error of 0.0014. Moreover, the Bayes method improves the load prediction accuracy by 5.6-50% compared to other state-of-the-art methods based on moving averages, auto-regression, and/or noise filters.
Manish Parashar (Chair) - Rutgers University
Sheng Di - INRIA
Derrick Kondo - INRIA
Walfredo Cirne - Google